47-21400-01 | A/R SPST OpenOnRise LimitSw | Rheem-Ruud

**NCO-47-21400-01 Rheem-Ruud A/R SPST Open-On-Rise Limit Switch** The Rheem-Ruud NCO-47-21400-01 limit switch is an auxiliary/return single pole single throw (SPST) open-on-rise switch designed for use in heating and cooling applications. Key features include: * **A/R (Auxiliary/Return) SPST Contact Configuration:** Controls the return or auxiliary circuit in heating or cooling systems. * **Open-On-Rise Function:** Breaks the electrical circuit when the temperature or pressure rises to a predetermined point. * **Versatile Applications:** Ideal for various temperature and pressure control systems in residential and commercial HVAC. * **Durable Construction:** Built to withstand harsh operating conditions. Our HVAC supply store offers the NCO-47-21400-01 limit switch at unbeatable prices with fast shipping. Visit our website today to secure yours and keep your HVAC systems operating efficiently.